Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Ordnance survey map 1:2,500
OS map: Rhymney Valley, near Tredegar. Powell Duffryn Colliery, Whitewise, Tirphill Collieries, Bedwellty Level (Puddlers Farm). Glamorgan Street [Photocopy] ? 25", 1877. Scale 1/2500 or 25.344 inches to one statute mile or 208.33 feet to one inch.
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.